diff --git a/DockerFile b/DockerFile new file mode 100644 index 0000000..da7f358 --- /dev/null +++ b/DockerFile @@ -0,0 +1,9 @@ +# base image from gradescope +FROM gradescope/auto-builds:ubuntu-18.04 +# make necessary directories +RUN apt-get update &&\ + apt-get -y install gcc flex bison build-essential siege apache2-utils libssl-dev &&\ + # change ApacheBench request HTTP version to 1.1 + perl -pi -e 's/HTTP\/1.0/HTTP\/1.1/g' /usr/bin/ab + +WORKDIR /home diff --git a/Log.txt b/Log.txt new file mode 100644 index 0000000..1761598 --- /dev/null +++ b/Log.txt @@ -0,0 +1,113 @@ +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:09:30 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:18:08 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Mon, 03 Jun 2024 15:30:21 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:48:26 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:55:35 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:58:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 12:59:09 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:00:40 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]200 OK, responded for request GET +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request +[Date: Wed, 05 Jun 2024 13:01:20 UTC][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..7dae104 --- /dev/null +++ b/Makefile @@ -0,0 +1,46 @@ +SRC_DIR := src +OBJ_DIR := obj +# all src files +SRC := $(wildcard $(SRC_DIR)/*.c) +# all objects +OBJ := $(OBJ_DIR)/y.tab.o $(OBJ_DIR)/lex.yy.o $(OBJ_DIR)/parse.o $(OBJ_DIR)/example.o +#OBJ_SERVER := $(OBJ_DIR)/y.tab.o $(OBJ_DIR)/lex.yy.o $(OBJ_DIR)/parse.o $(OBJ_DIR)/echo_server.o +# all binaries +BIN := example liso_server liso_client +# C compiler +CC := gcc +# C PreProcessor Flag +CPPFLAGS := -Iinclude +# compiler flags +CFLAGS := -g -Wall +# DEPS = parse.h y.tab.h + +default: all +all : example liso_server liso_client + +example: $(OBJ) + $(CC) $^ -o $@ + +$(SRC_DIR)/lex.yy.c: $(SRC_DIR)/lexer.l + flex -o $@ $^ + +$(SRC_DIR)/y.tab.c: $(SRC_DIR)/parser.y + yacc -d $^ + mv y.tab.c $@ + mv y.tab.h $(SRC_DIR)/y.tab.h + +$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(OBJ_DIR) + $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@ + +liso_server: $(OBJ_DIR)/liso_server.o $(OBJ_DIR)/lex.yy.o $(OBJ_DIR)/y.tab.o $(OBJ_DIR)/parse.o + $(CC) -g -Werror $^ -o $@ + +liso_client: $(OBJ_DIR)/liso_client.o + $(CC) -Werror $^ -o $@ + +$(OBJ_DIR): + mkdir $@ + +clean: + $(RM) $(OBJ) $(BIN) $(SRC_DIR)/lex.yy.c $(SRC_DIR)/y.tab.* + $(RM) -r $(OBJ_DIR) diff --git a/README.md b/README.md index 0187cfd..8596118 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,3 @@ -# ComputerNetwork_socket_lab - # project-1 This repository contains the starter code for ***CMU 15-441/641 Networking and the Internet Project 1: A Web Server Called Liso***. diff --git a/access_log b/access_log new file mode 100644 index 0000000..17627a2 --- /dev/null +++ b/access_log @@ -0,0 +1,2 @@ +www.cs.cmu.edu - - "GE /~prs/15-441-F15/ HTTP/1.1" 501 26 +www.cs.cmu.edu - - "GE /~prs/15-441-F15/ HTTP/1.1" 501 26 diff --git a/cgi/README b/cgi/README new file mode 100644 index 0000000..76f9d14 --- /dev/null +++ b/cgi/README @@ -0,0 +1,2 @@ +CGI Example Code - C server-side example, Python client examples; note: it doesn't show sending of content via stdin etc. +Daemonizing C Code - helper daemonizing code diff --git a/cgi/cgi.tar.gz b/cgi/cgi.tar.gz new file mode 100644 index 0000000..ba31007 Binary files /dev/null and b/cgi/cgi.tar.gz differ diff --git a/cgi/daemonize.c b/cgi/daemonize.c new file mode 100644 index 0000000..9c65b76 --- /dev/null +++ b/cgi/daemonize.c @@ -0,0 +1,82 @@ +/****************************************************************************** + * Reference: http://www.enderunix.org/docs/eng/daemon.php * + * Modified by: Wolf Richter * + * O_EXCL Bug Fix by: Ming Han +#include +#include +#include +#include +#include +#include +#include +#include + +/***** Utility Functions *****/ + +/** + * internal signal handler + */ +void signal_handler(int sig) +{ + switch(sig) + { + case SIGHUP: + /* rehash the server */ + break; + case SIGTERM: + /* finalize and shutdown the server */ + // TODO: liso_shutdown(NULL, EXIT_SUCCESS); + break; + default: + break; + /* unhandled signal */ + } +} + +/** + * internal function daemonizing the process + */ +int daemonize(char* lock_file) +{ + /* drop to having init() as parent */ + int i, lfp, pid = fork(); + char str[256] = {0}; + if (pid < 0) exit(EXIT_FAILURE); + if (pid > 0) exit(EXIT_SUCCESS); + + setsid(); + + for (i = getdtablesize(); i>=0; i--) + close(i); + + i = open("/dev/null", O_RDWR); + dup(i); /* stdout */ + dup(i); /* stderr */ + umask(027); + + lfp = open(lock_file, O_RDWR|O_CREAT, 0640); + + if (lfp < 0) + exit(EXIT_FAILURE); /* can not open */ + + if (lockf(lfp, F_TLOCK, 0) < 0) + exit(EXIT_SUCCESS); /* can not lock */ + + /* only first instance continues */ + sprintf(str, "%d\n", getpid()); + write(lfp, str, strlen(str)); /* record pid to lockfile */ + + signal(SIGCHLD, SIG_IGN); /* child terminate signal */ + + signal(SIGHUP, signal_handler); /* hangup signal */ + signal(SIGTERM, signal_handler); /* software termination signal from kill */ + + // TODO: log --> "Successfully daemonized lisod process, pid %d." + + return EXIT_SUCCESS; +} \ No newline at end of file diff --git a/echo_client b/echo_client new file mode 100644 index 0000000..665efb0 Binary files /dev/null and b/echo_client differ diff --git a/echo_server b/echo_server new file mode 100644 index 0000000..173e4b7 Binary files /dev/null and b/echo_server differ diff --git a/example b/example new file mode 100644 index 0000000..deece9e Binary files /dev/null and b/example differ diff --git a/include/parse.h b/include/parse.h new file mode 100644 index 0000000..a12e8a3 --- /dev/null +++ b/include/parse.h @@ -0,0 +1,29 @@ +#include +#include +#include + +#define SUCCESS 0 + +//Header field +typedef struct +{ + char header_name[4096]; + char header_value[4096]; +} Request_header; + +//HTTP Request Header +typedef struct +{ + char http_version[50]; + char http_method[50]; + char http_uri[4096]; + Request_header *headers; + int header_count; +} Request; + +// Request* parse(char *buffer, int size,int socketFd); +Request** parse(char *buffer, int size,int socketFd, int* request_num); + +// functions decalred in parser.y +int yyparse(); +void set_parsing_options(char *buf, size_t i, Request *request); diff --git a/liso_client b/liso_client new file mode 100644 index 0000000..69e5016 Binary files /dev/null and b/liso_client differ diff --git a/liso_server b/liso_server new file mode 100644 index 0000000..e494f8b Binary files /dev/null and b/liso_server differ diff --git a/samples/request_get b/samples/request_get new file mode 100644 index 0000000..44e59c0 --- /dev/null +++ b/samples/request_get @@ -0,0 +1,9 @@ +GET / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + + diff --git a/samples/request_head b/samples/request_head new file mode 100644 index 0000000..464de9d --- /dev/null +++ b/samples/request_head @@ -0,0 +1,9 @@ +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + + diff --git a/samples/request_pipeline b/samples/request_pipeline new file mode 100644 index 0000000..97ebefc --- /dev/null +++ b/samples/request_pipeline @@ -0,0 +1,82 @@ +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +DELETE /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.5 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHE /~prs/15-441-F15/ HTTP/1.10 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HOHO /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHA /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET +/~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + + diff --git a/samples/request_post b/samples/request_post new file mode 100644 index 0000000..5af4524 --- /dev/null +++ b/samples/request_post @@ -0,0 +1,9 @@ +POST / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + + diff --git a/samples/sample_400 b/samples/sample_400 new file mode 100644 index 0000000..42b14f4 --- /dev/null +++ b/samples/sample_400 @@ -0,0 +1,8 @@ +GET +/~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 diff --git a/samples/sample_404 b/samples/sample_404 new file mode 100644 index 0000000..be42eeb --- /dev/null +++ b/samples/sample_404 @@ -0,0 +1,7 @@ +GET /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 \ No newline at end of file diff --git a/samples/sample_501 b/samples/sample_501 new file mode 100644 index 0000000..773ef42 --- /dev/null +++ b/samples/sample_501 @@ -0,0 +1,4 @@ +GE /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu + + diff --git a/samples/sample_505 b/samples/sample_505 new file mode 100644 index 0000000..3b3aa6a --- /dev/null +++ b/samples/sample_505 @@ -0,0 +1,7 @@ +GET / HTTP/0.0 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 diff --git a/samples/sample_error1 b/samples/sample_error1 new file mode 100644 index 0000000..6a82da1 --- /dev/null +++ b/samples/sample_error1 @@ -0,0 +1,7 @@ + GET /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 diff --git a/samples/sample_error2 b/samples/sample_error2 new file mode 100644 index 0000000..f463937 --- /dev/null +++ b/samples/sample_error2 @@ -0,0 +1,7 @@ +GET /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language en-US,en;q=0.8 diff --git a/samples/sample_error3 b/samples/sample_error3 new file mode 100644 index 0000000..e98e77d --- /dev/null +++ b/samples/sample_error3 @@ -0,0 +1,7 @@ +GET /~prs/15-441-F15/ HTTP/1.1 +: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 \ No newline at end of file diff --git a/samples/sample_error4 b/samples/sample_error4 new file mode 100644 index 0000000..61b1273 --- /dev/null +++ b/samples/sample_error4 @@ -0,0 +1,7 @@ +GET /~prs/15-441-F15/ +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 \ No newline at end of file diff --git a/samples/sample_request_example b/samples/sample_request_example new file mode 100644 index 0000000..097eb2b --- /dev/null +++ b/samples/sample_request_example @@ -0,0 +1,4 @@ +GET /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu + + diff --git a/samples/sample_request_realistic b/samples/sample_request_realistic new file mode 100644 index 0000000..906ba3e --- /dev/null +++ b/samples/sample_request_realistic @@ -0,0 +1,9 @@ +GET /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + + diff --git a/samples/try_week3 b/samples/try_week3 new file mode 100644 index 0000000..a6420e5 --- /dev/null +++ b/samples/try_week3 @@ -0,0 +1,179 @@ +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +DELETE /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.5 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHE /~prs/15-441-F15/ HTTP/1.10 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HOHO /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHA /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET +/~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +DELETE /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.5 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHE /~prs/15-441-F15/ HTTP/1.10 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HOHO /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HAHA /~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET +/~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +GET +/~prs/15-441-F15/ HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + +HEAD / HTTP/1.1 +Host: www.cs.cmu.edu +Connection: keep-alive +Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 +User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 +Accept-Encoding: gzip, deflate, sdch +Accept-Language: en-US,en;q=0.8 + diff --git a/src/example.c b/src/example.c new file mode 100644 index 0000000..36ba9ed --- /dev/null +++ b/src/example.c @@ -0,0 +1,40 @@ +/* C declarations used in actions */ +#include +#include +#include +#include +#include +#include +#include "parse.h" + +int main(int argc, char **argv){ + //Read from the file the sample + int fd_in = open(argv[1], O_RDONLY); + int index; + char buf[8192]; + if(fd_in < 0) { + printf("Failed to open the file\n"); + return 0; + } + int readRet = read(fd_in,buf,8192); + int* request_num; + *request_num = 0; + //Parse the buffer to the parse function. You will need to pass the socket fd and the buffer would need to + //be read from that fd + Request** request = parse(buf,readRet,fd_in, request_num); + //Just printing everything + int k; + for(k = 0;k<*request_num;k++){ + printf("Http Method %s\n",request[k]->http_method); + printf("Http Version %s\n",request[k]->http_version); + printf("Http Uri %s\n",request[k]->http_uri); + for(index = 0;index < request[k]->header_count;index++){ + printf("Request Header\n"); + printf("Header name %s Header Value %s\n",request[k]->headers[index].header_name,request[k]->headers[index].header_value); + } + free(request[k]->headers); + request[k]->headers = NULL; + free(request[k]); + } + return 0; +} diff --git a/src/lex.yy.c b/src/lex.yy.c new file mode 100644 index 0000000..ce6b90c --- /dev/null +++ b/src/lex.yy.c @@ -0,0 +1,2018 @@ +#line 2 "src/lex.yy.c" + +#line 4 "src/lex.yy.c" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 6 +#define YY_FLEX_SUBMINOR_VERSION 4 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include +#include +#include +#include + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have . Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#ifndef SIZE_MAX +#define SIZE_MAX (~(size_t)0) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +/* begin standard C++ headers. */ + +/* TODO: this is always defined, so inline it */ +#define yyconst const + +#if defined(__GNUC__) && __GNUC__ >= 3 +#define yynoreturn __attribute__((__noreturn__)) +#else +#define yynoreturn +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an + * integer in range [0..255] for use as an array index. + */ +#define YY_SC_TO_UI(c) ((YY_CHAR) (c)) + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN (yy_start) = 1 + 2 * +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START (((yy_start) - 1) / 2) +#define YYSTATE YY_START +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE yyrestart( yyin ) +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k. + * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. + * Ditto for the __ia64__ case accordingly. + */ +#define YY_BUF_SIZE 32768 +#else +#define YY_BUF_SIZE 16384 +#endif /* __ia64__ */ +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +extern int yyleng; + +extern FILE *yyin, *yyout; + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + #define YY_LINENO_REWIND_TO(ptr) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = (yy_hold_char); \ + YY_RESTORE_YY_MORE_OFFSET \ + (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) +#define unput(c) yyunput( c, (yytext_ptr) ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + int yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + int yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* Stack of input buffers. */ +static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ +static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ +static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ + ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ + : NULL) +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] + +/* yy_hold_char holds the character lost when yytext is formed. */ +static char yy_hold_char; +static int yy_n_chars; /* number of characters read into yy_ch_buf */ +int yyleng; + +/* Points to current character in buffer. */ +static char *yy_c_buf_p = NULL; +static int yy_init = 0; /* whether we need to initialize */ +static int yy_start = 0; /* start state number */ + +/* Flag which is used to allow yywrap()'s to do buffer switches + * instead of setting up a fresh yyin. A bit of a hack ... + */ +static int yy_did_buffer_switch_on_eof; + +void yyrestart ( FILE *input_file ); +void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer ); +YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size ); +void yy_delete_buffer ( YY_BUFFER_STATE b ); +void yy_flush_buffer ( YY_BUFFER_STATE b ); +void yypush_buffer_state ( YY_BUFFER_STATE new_buffer ); +void yypop_buffer_state ( void ); + +static void yyensure_buffer_stack ( void ); +static void yy_load_buffer_state ( void ); +static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file ); +#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER ) + +YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size ); +YY_BUFFER_STATE yy_scan_string ( const char *yy_str ); +YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len ); + +void *yyalloc ( yy_size_t ); +void *yyrealloc ( void *, yy_size_t ); +void yyfree ( void * ); + +#define yy_new_buffer yy_create_buffer +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer( yyin, YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer( yyin, YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ +typedef flex_uint8_t YY_CHAR; + +FILE *yyin = NULL, *yyout = NULL; + +typedef int yy_state_type; + +extern int yylineno; +int yylineno = 1; + +extern char *yytext; +#ifdef yytext_ptr +#undef yytext_ptr +#endif +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state ( void ); +static yy_state_type yy_try_NUL_trans ( yy_state_type current_state ); +static int yy_get_next_buffer ( void ); +static void yynoreturn yy_fatal_error ( const char* msg ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + (yytext_ptr) = yy_bp; \ + yyleng = (int) (yy_cp - yy_bp); \ + (yy_hold_char) = *yy_cp; \ + *yy_cp = '\0'; \ + (yy_c_buf_p) = yy_cp; +#define YY_NUM_RULES 13 +#define YY_END_OF_BUFFER 14 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static const flex_int16_t yy_accept[20] = + { 0, + 5, 5, 14, 12, 5, 12, 4, 10, 9, 7, + 2, 6, 8, 1, 13, 5, 3, 11, 0 + } ; + +static const YY_CHAR yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 5, 6, 7, 6, 6, 6, 6, 6, 7, + 7, 6, 6, 7, 6, 8, 9, 10, 10, 10, + 10, 10, 10, 10, 10, 10, 10, 11, 7, 7, + 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 7, 12, 7, 6, 6, 6, 6, 6, 6, 6, + + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 7, 6, 7, 6, 1, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13 + } ; + +static const YY_CHAR yy_meta[14] = + { 0, + 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, + 1, 1, 1 + } ; + +static const flex_int16_t yy_base[21] = + { 0, + 0, 0, 18, 19, 0, 13, 0, 19, 19, 19, + 19, 19, 19, 19, 19, 0, 12, 0, 19, 13 + } ; + +static const flex_int16_t yy_def[21] = + { 0, + 19, 1, 19, 19, 20, 19, 20, 19, 19, 19, + 19, 19, 19, 19, 19, 20, 19, 17, 0, 19 + } ; + +static const flex_int16_t yy_nxt[33] = + { 0, + 4, 5, 4, 6, 7, 8, 9, 10, 11, 12, + 13, 14, 15, 18, 16, 17, 18, 19, 3, 19, + 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19 + } ; + +static const flex_int16_t yy_chk[33] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 17, 20, 6, 17, 3, 19, 19, + 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, + 19, 19 + } ; + +static yy_state_type yy_last_accepting_state; +static char *yy_last_accepting_cpos; + +extern int yy_flex_debug; +int yy_flex_debug = 0; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "src/lexer.l" +/** + * @file lexer.l + * @brief Grammar for HTTP + * + * This file contains grammar for HTTP packets defined in RFC 2616 + * section 2: Notational Conventions and Generic Grammar. + * + * @author Rajul Bhatnagar (2016) + */ +#line 12 "src/lexer.l" +#include + +/* This file is generated by yacc */ +#include "y.tab.h" + + +/* Define LEXDEBUG to enable debug messages for this lex file */ +#define LEXDEBUG +#ifdef LEXDEBUG +#include +#define LPRINTF(...) printf(__VA_ARGS__) +#else +#define LPRINTF(...) +#endif + +#undef YY_INPUT +/* + * yylex() by default takes input from stdin. You might be wondering how + * to parse data from a buffer instead. This is how you do it. The way + * it works is, when yylex() needs more input, it invokes a macro + * called YYINPUT: + * + * YY_INPUT(lex_internal_buffer, number_of_bytes_read, max_number_of_bytes_to_read) + * + * We hack it, and we undef the macro, and redefine it to something else! + * + * The usage of this macro will be clear from the lex-yacc-example. + */ + +/* We need some global state (must be defined in parser.y) */ +extern char *parsing_buf; /* The buffer to read the data from */ +extern size_t parsing_buf_siz; /* Size of the buffer */ +extern int parsing_offset; /* Current offset in the buffer */ + +#define MIN(__a, __b) (((__a) < (__b)) ? (__a) : (__b)) + +/* Redefine YY_INPUT to read from a buffer instead of stdin! */ +#define YY_INPUT(__b, __r, __s) do { \ + __r = MIN(__s, parsing_buf_siz - parsing_offset); \ + memcpy(__b, parsing_buf + parsing_offset, __r); \ + parsing_offset += __r; \ + } while(0) + + + +#line 507 "src/lex.yy.c" +/* + * Following is a list of rules specified in RFC 2616 section 2: + * + * Lookup Table + * cr \x0d + * lf \x0a + * sp \x20 + * ht \x09 + * quote \" + * digit [0-9] + * ctl [\x0-\x1f\x7f] + * upalpha [A-Z] + * loalpha [a-z] + * alpha [A-Za-z] + * char [\x0-\x7f] + * octet [\x0-\x1f\xff] + * crlf {cr}{lf} + * lws \x0d\x0a(\x20|\x09)* + * hex [ABCDEFabcdef0-9] + * separators [\{\}\(\)\<\>@,;:\\\"/\[\]?=\x20\x09] + */ +/** + * Declarations + */ +/* Matches a digit. For e.g., 0, 8. */ +/* Matches a CRLF. Carriage return - linefeed sequence */ +/* Matches a Colon */ +/* Matches a space */ +/* Matches a any combination of spaces and horizontal tabs */ +/* Matches a CRLF followed by a ws */ +/* + * matches following characters: (RFC 2616, Section 2.2) + * ( ) < > @ , ; : \ " / [ ] ? = { } + */ +/* Matches a CTL*/ +/* + * (RFC 2616, Section 2.2) + * This rule matches _ANY_ character _EXCEPT_ separators (see above), + * and control characters (ascii values 0x0 - 0x1F and 0x7f). + * + * token_char = ( char - ctl - separators ) + * + * Note: A token can be detected as any combination of token characters. + */ +#line 552 "src/lex.yy.c" + +#define INITIAL 0 + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include +#endif + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +static int yy_init_globals ( void ); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int yylex_destroy ( void ); + +int yyget_debug ( void ); + +void yyset_debug ( int debug_flag ); + +YY_EXTRA_TYPE yyget_extra ( void ); + +void yyset_extra ( YY_EXTRA_TYPE user_defined ); + +FILE *yyget_in ( void ); + +void yyset_in ( FILE * _in_str ); + +FILE *yyget_out ( void ); + +void yyset_out ( FILE * _out_str ); + + int yyget_leng ( void ); + +char *yyget_text ( void ); + +int yyget_lineno ( void ); + +void yyset_lineno ( int _line_number ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap ( void ); +#else +extern int yywrap ( void ); +#endif +#endif + +#ifndef YY_NO_UNPUT + + static void yyunput ( int c, char *buf_ptr ); + +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy ( char *, const char *, int ); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen ( const char * ); +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus +static int yyinput ( void ); +#else +static int input ( void ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k */ +#define YY_READ_BUF_SIZE 16384 +#else +#define YY_READ_BUF_SIZE 8192 +#endif /* __ia64__ */ +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + int n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int yylex (void); + +#define YY_DECL int yylex (void) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK /*LINTED*/break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + yy_state_type yy_current_state; + char *yy_cp, *yy_bp; + int yy_act; + + if ( !(yy_init) ) + { + (yy_init) = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! (yy_start) ) + (yy_start) = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE ); + } + + yy_load_buffer_state( ); + } + + { +#line 123 "src/lexer.l" + + +#line 126 "src/lexer.l" +/* + * Actions + * + * yytext: yytext is the "string" that matches a certain rule. For example, + * in the first rule 1: slash, you get the string that matched + * (in this case "/") in yytext. + * + * yylval: yylval is a variable used to communicate matched value in lex to + * yacc. yylval is a union of different types (please see parser.y) + * file for details. + */ + + +#line 786 "src/lex.yy.c" + + while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */ + { + yy_cp = (yy_c_buf_p); + + /* Support of yytext. */ + *yy_cp = (yy_hold_char); + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = (yy_start); +yy_match: + do + { + YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 20 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 19 ); + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + if ( yy_act == 0 ) + { /* have to back up */ + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + yy_act = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = (yy_hold_char); + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + goto yy_find_action; + +case 1: +YY_RULE_SETUP +#line 139 "src/lexer.l" +{ + /* Rule 0: Backslash */ + + LPRINTF("t:backslash; \n"); + + /* Copy character to yylval.i*/ + yylval.i = yytext[0]; + + /* + * This return statement lets terminates yylex() function and lets + * yacc know that a slash was found! + */ + return t_backslash; +} + YY_BREAK +case 2: +YY_RULE_SETUP +#line 154 "src/lexer.l" +{ + /* Rule 1: Slash */ + + LPRINTF("t:slash; \n"); + + /* Copy character to yylval.i*/ + yylval.i = yytext[0]; + + /* + * This return statement lets terminates yylex() function and lets + * yacc know that a slash was found! + */ + return t_slash; +} + YY_BREAK +case 3: +/* rule 3 can match eol */ +YY_RULE_SETUP +#line 169 "src/lexer.l" +{ + /* Rule 2: CRLF */ + + LPRINTF("t:crlf; \n"); + + /* + * No need to communicate the value of CRLF to yacc, so no + * yylval here. + */ + + return t_crlf; +} + YY_BREAK +case 4: +YY_RULE_SETUP +#line 182 "src/lexer.l" +{ + /* Rule 3: Space */ + + LPRINTF("t:sp '%s'; \n", yytext); + + yylval.i = yytext[0]; + + return t_sp; +} + YY_BREAK +case 5: +YY_RULE_SETUP +#line 192 "src/lexer.l" +{ + /* Rule 4: A sequence of white spaces */ + + LPRINTF("t:ht; \n"); + + /* Very important to communicate the value here! */ + strcpy(yylval.str, yytext); + + return t_ws; +} + YY_BREAK +case 6: +YY_RULE_SETUP +#line 203 "src/lexer.l" +{ + /* Rule 5: A digit */ + + LPRINTF("t:digit %d; \n", atoi(yytext)); + + yylval.i = atoi(yytext); + + return t_digit; +} + YY_BREAK +case 7: +YY_RULE_SETUP +#line 213 "src/lexer.l" +{ + /* Rule 6: A dot */ + + LPRINTF("t:dot; \n"); + yylval.i = '.'; + return t_dot; +} + YY_BREAK +case 8: +YY_RULE_SETUP +#line 221 "src/lexer.l" +{ + /* Rule 7: A colon */ + + LPRINTF("t:colon; \n"); + yylval.i = ':'; + return t_colon; +} + YY_BREAK +case 9: +YY_RULE_SETUP +#line 229 "src/lexer.l" +{ + /* Rule 8: A separator */ + + LPRINTF("t:separators \'%s\'\n", yytext); + yylval.i = yytext[0]; + return t_separators; +} + YY_BREAK +case 10: +YY_RULE_SETUP +#line 237 "src/lexer.l" +{ + /* Rule 9: A character allowed in a token */ + + LPRINTF("t:token_char %s\n", yytext); + /* + * Again, it is important to communicate the value back + * Otherwise, yacc has no way to know which character matched the rule + */ + yylval.i = yytext[0]; + return t_token_char; +} + YY_BREAK +case 11: +/* rule 11 can match eol */ +YY_RULE_SETUP +#line 249 "src/lexer.l" +{ + /* Rule 10: Linear white spaces */ + + LPRINTF("t:lws\n"); + return t_lws; +} + YY_BREAK +case 12: +/* rule 12 can match eol */ +YY_RULE_SETUP +#line 256 "src/lexer.l" +{ + LPRINTF("t:ctl\n"); + return t_ctl; +} + YY_BREAK +case 13: +YY_RULE_SETUP +#line 261 "src/lexer.l" +ECHO; + YY_BREAK +#line 1009 "src/lex.yy.c" +case YY_STATE_EOF(INITIAL): + yyterminate(); + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = (yy_hold_char); + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * yylex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state ); + + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++(yy_c_buf_p); + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = (yy_c_buf_p); + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_END_OF_FILE: + { + (yy_did_buffer_switch_on_eof) = 0; + + if ( yywrap( ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = + (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + (yy_c_buf_p) = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of user's declarations */ +} /* end of yylex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (void) +{ + char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + char *source = (yytext_ptr); + int number_to_move, i; + int ret_val; + + if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; + + else + { + int num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) ((yy_c_buf_p) - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + int new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + yyrealloc( (void *) b->yy_ch_buf, + (yy_size_t) (b->yy_buf_size + 2) ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = NULL; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + (yy_n_chars), num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + if ( (yy_n_chars) == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + yyrestart( yyin ); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc( + (void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + /* "- 2" to take care of EOB's */ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2); + } + + (yy_n_chars) += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; + + (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (void) +{ + yy_state_type yy_current_state; + char *yy_cp; + + yy_current_state = (yy_start); + + for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) + { + YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 20 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) +{ + int yy_is_jam; + char *yy_cp = (yy_c_buf_p); + + YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 20 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + yy_is_jam = (yy_current_state == 19); + + return yy_is_jam ? 0 : yy_current_state; +} + +#ifndef YY_NO_UNPUT + + static void yyunput (int c, char * yy_bp ) +{ + char *yy_cp; + + yy_cp = (yy_c_buf_p); + + /* undo effects of setting up yytext */ + *yy_cp = (yy_hold_char); + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + /* +2 for EOB chars. */ + int number_to_move = (yy_n_chars) + 2; + char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; + char *source = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; + + while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + *--dest = *--source; + + yy_cp += (int) (dest - source); + yy_bp += (int) (dest - source); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = + (yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size; + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + *--yy_cp = (char) c; + + (yytext_ptr) = yy_bp; + (yy_hold_char) = *yy_cp; + (yy_c_buf_p) = yy_cp; +} + +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (void) +#else + static int input (void) +#endif + +{ + int c; + + *(yy_c_buf_p) = (yy_hold_char); + + if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + /* This was really a NUL. */ + *(yy_c_buf_p) = '\0'; + + else + { /* need more input */ + int offset = (int) ((yy_c_buf_p) - (yytext_ptr)); + ++(yy_c_buf_p); + + switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + yyrestart( yyin ); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap( ) ) + return 0; + + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(); +#else + return input(); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = (yytext_ptr) + offset; + break; + } + } + } + + c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ + *(yy_c_buf_p) = '\0'; /* preserve yytext */ + (yy_hold_char) = *++(yy_c_buf_p); + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * + * @note This function does not reset the start condition to @c INITIAL . + */ + void yyrestart (FILE * input_file ) +{ + + if ( ! YY_CURRENT_BUFFER ){ + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE ); + } + + yy_init_buffer( YY_CURRENT_BUFFER, input_file ); + yy_load_buffer_state( ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * + */ + void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) +{ + + /* TODO. We should be able to replace this entire function body + * with + * yypop_buffer_state(); + * yypush_buffer_state(new_buffer); + */ + yyensure_buffer_stack (); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + yy_load_buffer_state( ); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + (yy_did_buffer_switch_on_eof) = 1; +} + +static void yy_load_buffer_state (void) +{ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + (yy_hold_char) = *(yy_c_buf_p); +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * + * @return the allocated buffer state. + */ + YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) yyalloc( (yy_size_t) (b->yy_buf_size + 2) ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer( b, file ); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with yy_create_buffer() + * + */ + void yy_delete_buffer (YY_BUFFER_STATE b ) +{ + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + yyfree( (void *) b->yy_ch_buf ); + + yyfree( (void *) b ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a yyrestart() or at EOF. + */ + static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) + +{ + int oerrno = errno; + + yy_flush_buffer( b ); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then yy_init_buffer was _probably_ + * called from yyrestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * + */ + void yy_flush_buffer (YY_BUFFER_STATE b ) +{ + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + yy_load_buffer_state( ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * + */ +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) +{ + if (new_buffer == NULL) + return; + + yyensure_buffer_stack(); + + /* This block is copied from yy_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + (yy_buffer_stack_top)++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from yy_switch_to_buffer. */ + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * + */ +void yypop_buffer_state (void) +{ + if (!YY_CURRENT_BUFFER) + return; + + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + if ((yy_buffer_stack_top) > 0) + --(yy_buffer_stack_top); + + if (YY_CURRENT_BUFFER) { + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void yyensure_buffer_stack (void) +{ + yy_size_t num_to_alloc; + + if (!(yy_buffer_stack)) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */ + (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + (yy_buffer_stack_max) = num_to_alloc; + (yy_buffer_stack_top) = 0; + return; + } + + if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + yy_size_t grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = (yy_buffer_stack_max) + grow_size; + (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc + ((yy_buffer_stack), + num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); + (yy_buffer_stack_max) = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return NULL; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = (int) (size - 2); /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = NULL; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + yy_switch_to_buffer( b ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to yylex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * yy_scan_bytes() instead. + */ +YY_BUFFER_STATE yy_scan_string (const char * yystr ) +{ + + return yy_scan_bytes( yystr, (int) strlen(yystr) ); +} + +/** Setup the input buffer state to scan the given bytes. The next call to yylex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_bytes (const char * yybytes, int _yybytes_len ) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + int i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = (yy_size_t) (_yybytes_len + 2); + buf = (char *) yyalloc( n ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = yy_scan_buffer( buf, n ); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yynoreturn yy_fatal_error (const char* msg ) +{ + fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = (yy_hold_char); \ + (yy_c_buf_p) = yytext + yyless_macro_arg; \ + (yy_hold_char) = *(yy_c_buf_p); \ + *(yy_c_buf_p) = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the current line number. + * + */ +int yyget_lineno (void) +{ + + return yylineno; +} + +/** Get the input stream. + * + */ +FILE *yyget_in (void) +{ + return yyin; +} + +/** Get the output stream. + * + */ +FILE *yyget_out (void) +{ + return yyout; +} + +/** Get the length of the current token. + * + */ +int yyget_leng (void) +{ + return yyleng; +} + +/** Get the current token. + * + */ + +char *yyget_text (void) +{ + return yytext; +} + +/** Set the current line number. + * @param _line_number line number + * + */ +void yyset_lineno (int _line_number ) +{ + + yylineno = _line_number; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param _in_str A readable stream. + * + * @see yy_switch_to_buffer + */ +void yyset_in (FILE * _in_str ) +{ + yyin = _in_str ; +} + +void yyset_out (FILE * _out_str ) +{ + yyout = _out_str ; +} + +int yyget_debug (void) +{ + return yy_flex_debug; +} + +void yyset_debug (int _bdebug ) +{ + yy_flex_debug = _bdebug ; +} + +static int yy_init_globals (void) +{ + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from yylex_destroy(), so don't allocate here. + */ + + (yy_buffer_stack) = NULL; + (yy_buffer_stack_top) = 0; + (yy_buffer_stack_max) = 0; + (yy_c_buf_p) = NULL; + (yy_init) = 0; + (yy_start) = 0; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = NULL; + yyout = NULL; +#endif + + /* For future reference: Set errno on error, since we are called by + * yylex_init() + */ + return 0; +} + +/* yylex_destroy is for both reentrant and non-reentrant scanners. */ +int yylex_destroy (void) +{ + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + yy_delete_buffer( YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + yypop_buffer_state(); + } + + /* Destroy the stack itself. */ + yyfree((yy_buffer_stack) ); + (yy_buffer_stack) = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * yylex() is called, initialization will occur. */ + yy_init_globals( ); + + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, const char * s2, int n ) +{ + + int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (const char * s ) +{ + int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *yyalloc (yy_size_t size ) +{ + return malloc(size); +} + +void *yyrealloc (void * ptr, yy_size_t size ) +{ + + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return realloc(ptr, size); +} + +void yyfree (void * ptr ) +{ + free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +#line 261 "src/lexer.l" + + +int yywrap(void) { +return 0; } + diff --git a/src/lexer.l b/src/lexer.l new file mode 100644 index 0000000..68c7910 --- /dev/null +++ b/src/lexer.l @@ -0,0 +1,263 @@ +/** + * @file lexer.l + * @brief Grammar for HTTP + * + * This file contains grammar for HTTP packets defined in RFC 2616 + * section 2: Notational Conventions and Generic Grammar. + * + * @author Rajul Bhatnagar (2016) + */ + +%{ +#include + +/* This file is generated by yacc */ +#include "y.tab.h" + + +/* Define LEXDEBUG to enable debug messages for this lex file */ +#define LEXDEBUG +#ifdef LEXDEBUG +#include +#define LPRINTF(...) printf(__VA_ARGS__) +#else +#define LPRINTF(...) +#endif + +#undef YY_INPUT +/* + * yylex() by default takes input from stdin. You might be wondering how + * to parse data from a buffer instead. This is how you do it. The way + * it works is, when yylex() needs more input, it invokes a macro + * called YYINPUT: + * + * YY_INPUT(lex_internal_buffer, number_of_bytes_read, max_number_of_bytes_to_read) + * + * We hack it, and we undef the macro, and redefine it to something else! + * + * The usage of this macro will be clear from the lex-yacc-example. + */ + +/* We need some global state (must be defined in parser.y) */ +extern char *parsing_buf; /* The buffer to read the data from */ +extern size_t parsing_buf_siz; /* Size of the buffer */ +extern int parsing_offset; /* Current offset in the buffer */ + +#define MIN(__a, __b) (((__a) < (__b)) ? (__a) : (__b)) + +/* Redefine YY_INPUT to read from a buffer instead of stdin! */ +#define YY_INPUT(__b, __r, __s) do { \ + __r = MIN(__s, parsing_buf_siz - parsing_offset); \ + memcpy(__b, parsing_buf + parsing_offset, __r); \ + parsing_offset += __r; \ + } while(0) + + + +%} + +/* + * Following is a list of rules specified in RFC 2616 section 2: + * + * Lookup Table + * cr \x0d + * lf \x0a + * sp \x20 + * ht \x09 + * quote \" + * digit [0-9] + * ctl [\x0-\x1f\x7f] + * upalpha [A-Z] + * loalpha [a-z] + * alpha [A-Za-z] + * char [\x0-\x7f] + * octet [\x0-\x1f\xff] + * crlf {cr}{lf} + * lws \x0d\x0a(\x20|\x09)* + * hex [ABCDEFabcdef0-9] + * separators [\{\}\(\)\<\>@,;:\\\"/\[\]?=\x20\x09] + */ + +/** + * Declarations + */ + +/* Matches a digit. For e.g., 0, 8. */ +digit [0-9] + +/* Matches a CRLF. Carriage return - linefeed sequence */ +crlf \x0d\x0a + +/* Matches a Colon */ +colon : + +/* Matches a space */ +sp \x20 + +/* Matches a any combination of spaces and horizontal tabs */ +ws [\x20\x09]* + +/* Matches a CRLF followed by a ws */ +lws \x0d\x0a(\x20|\x09)* + +/* + * matches following characters: (RFC 2616, Section 2.2) + * ( ) < > @ , ; : \ " / [ ] ? = { } + */ +separators [\(\)\<\>@\,;:\\\"\/\[\]?=\{\}\x20\x09] + +/* Matches a CTL*/ +ctl [\x0-\x1f\x7f] + +/* + * (RFC 2616, Section 2.2) + * This rule matches _ANY_ character _EXCEPT_ separators (see above), + * and control characters (ascii values 0x0 - 0x1F and 0x7f). + * + * token_char = ( char - ctl - separators ) + * + * Note: A token can be detected as any combination of token characters. + */ +token_char [\x0-\x7f]{-}[\x0-\x1f\x7f]{-}[\{\}\(\)\<\>@\,;:\\\"/\[\]?=\x20\x09] + +%% +%{ +/* + * Actions + * + * yytext: yytext is the "string" that matches a certain rule. For example, + * in the first rule 1: slash, you get the string that matched + * (in this case "/") in yytext. + * + * yylval: yylval is a variable used to communicate matched value in lex to + * yacc. yylval is a union of different types (please see parser.y) + * file for details. + */ +%} + +"\\" { + /* Rule 0: Backslash */ + + LPRINTF("t:backslash; \n"); + + /* Copy character to yylval.i*/ + yylval.i = yytext[0]; + + /* + * This return statement lets terminates yylex() function and lets + * yacc know that a slash was found! + */ + return t_backslash; +} + +"\/" { + /* Rule 1: Slash */ + + LPRINTF("t:slash; \n"); + + /* Copy character to yylval.i*/ + yylval.i = yytext[0]; + + /* + * This return statement lets terminates yylex() function and lets + * yacc know that a slash was found! + */ + return t_slash; +} + +{crlf} { + /* Rule 2: CRLF */ + + LPRINTF("t:crlf; \n"); + + /* + * No need to communicate the value of CRLF to yacc, so no + * yylval here. + */ + + return t_crlf; +} + +{sp} { + /* Rule 3: Space */ + + LPRINTF("t:sp '%s'; \n", yytext); + + yylval.i = yytext[0]; + + return t_sp; +} + +{ws} { + /* Rule 4: A sequence of white spaces */ + + LPRINTF("t:ht; \n"); + + /* Very important to communicate the value here! */ + strcpy(yylval.str, yytext); + + return t_ws; +} + +{digit} { + /* Rule 5: A digit */ + + LPRINTF("t:digit %d; \n", atoi(yytext)); + + yylval.i = atoi(yytext); + + return t_digit; +} + +"." { + /* Rule 6: A dot */ + + LPRINTF("t:dot; \n"); + yylval.i = '.'; + return t_dot; +} + +{colon} { + /* Rule 7: A colon */ + + LPRINTF("t:colon; \n"); + yylval.i = ':'; + return t_colon; +} + +{separators} { + /* Rule 8: A separator */ + + LPRINTF("t:separators \'%s\'\n", yytext); + yylval.i = yytext[0]; + return t_separators; +} + +{token_char} { + /* Rule 9: A character allowed in a token */ + + LPRINTF("t:token_char %s\n", yytext); + /* + * Again, it is important to communicate the value back + * Otherwise, yacc has no way to know which character matched the rule + */ + yylval.i = yytext[0]; + return t_token_char; +} + +{lws} { + /* Rule 10: Linear white spaces */ + + LPRINTF("t:lws\n"); + return t_lws; +} + +{ctl} { + LPRINTF("t:ctl\n"); + return t_ctl; +} + +%% + +int yywrap(void) { +return 0; } diff --git a/src/liso_client.c b/src/liso_client.c new file mode 100644 index 0000000..010bd30 --- /dev/null +++ b/src/liso_client.c @@ -0,0 +1,91 @@ +/****************************************************************************** +* echo_client.c * +* * +* Description: This file contains the C source code for an echo client. The * +* client connects to an arbitrary and sends input * +* from stdin. * +* * +* Authors: Athula Balachandran , * +* Wolf Richter * +* * +*******************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define ECHO_PORT 9999 +#define BUF_SIZE 4096 + +/** + * argv[1] : 主机名 + * argv[2] : 端口号 +**/ + +int main(int argc, char* argv[]) +{ + if (argc != 4) + { + fprintf(stderr, "usage: %s ",argv[0]); + return EXIT_FAILURE; + } + + char buf[BUF_SIZE*2]; + + int status, client_sockfd; + struct addrinfo hints; + memset(&hints, 0, sizeof(struct addrinfo)); + struct addrinfo *servinfo; //will point to the results + hints.ai_family = AF_INET; //IPv4 + hints.ai_socktype = SOCK_STREAM; //TCP stream sockets + hints.ai_flags = AI_PASSIVE; //fill in my IP for me + + if ((status = getaddrinfo(argv[1], argv[2], &hints, &servinfo)) != 0) + { + fprintf(stderr, "getaddrinfo error: %s \n", gai_strerror(status)); + return EXIT_FAILURE; + } + + if((client_sockfd = socket(servinfo->ai_family, servinfo->ai_socktype, servinfo->ai_protocol)) == -1) + { + fprintf(stderr, "Socket failed"); + return EXIT_FAILURE; + } + + if (connect (client_sockfd, servinfo->ai_addr, servinfo->ai_addrlen) == -1) + { + fprintf(stderr, "Connect"); + return EXIT_FAILURE; + } + + char msg[BUF_SIZE*2]; + //fgets(msg, BUF_SIZE, stdin); + + FILE *sample; + sample = fopen(argv[3], "r"); + fread(msg, BUF_SIZE*2, 1, sample); //sample to msg, one time read 1 maximum, read BUF_SIZE times + fclose(sample); + + int bytes_received; + fprintf(stdout, "Sending====\n%s\n====\n", msg); + // send(sock, msg , strlen(msg), 0); + write(client_sockfd, msg, strlen(msg)); + if((bytes_received = recv(client_sockfd, buf, BUF_SIZE*2, 0)) > 1) + { + buf[bytes_received] = '\0'; + fprintf(stdout, "Received====\n%s\n====\n", buf); + } + + freeaddrinfo(servinfo); + //close(sock); + return EXIT_SUCCESS; +} + + diff --git a/src/liso_server.c b/src/liso_server.c new file mode 100644 index 0000000..055bb19 --- /dev/null +++ b/src/liso_server.c @@ -0,0 +1,234 @@ +/****************************************************************************** +* echo_server.c * +* * +* Description: This file contains the C source code for an echo server. The * +* server runs on a hard-coded port and simply write back anything* +* sent to it by connected clients. It does not support * +* concurrent clients. * +* * +* Authors: Athula Balachandran , * +* Wolf Richter * +* * +*******************************************************************************/ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "parse.h" + +#define ECHO_PORT 9999 +#define BUF_SIZE 4096 + +Request** parse(char *buffer, int size, int socketFd, int* request_num); + +char* process(char*buf, int size){ + char temp[100]; + time_t Time; + struct tm *info; + Time = time(NULL); + info = localtime(&Time); + strftime(temp,100,"%a, %d %b %Y %k:%M:%S",info); + strcat(temp, " UTC"); + + Request** request = (Request**)malloc(sizeof(Request*)*100); + + int* request_num = (int*)malloc(sizeof(int)); + *request_num = 0; + request = parse(buf, size, 0, request_num); + + char* buffer = (char*)malloc(sizeof(char) * BUF_SIZE * (*request_num)); + memset(buffer,0,BUF_SIZE * (*request_num)); + //TODO: only get the first request, how to get others + + for(int k = 0;k<(*request_num);k++){ + char response[BUF_SIZE] = {0}; + + if(request[k]==NULL){ + + sprintf(response, "HTTP/1.1 400 Bad request\r\n\r\n"); + FILE* log = fopen("./Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]HTTP/1.1 400 Bad request\n", temp); + fclose(log); + } + + else { + if (strcmp(request[k]->http_version, "HTTP/1.1") == 0) { + if (strcmp(request[k]->http_method, "GET") == 0) { + char htmlstr[BUF_SIZE]; + FILE *index = fopen("./static_site/index.html", "r"); + + if (index == NULL || strcmp(request[k]->http_uri, "/") != 0) { + sprintf(response, "HTTP/1.1 404 Not Found\r\n\r\n"); + FILE* log = fopen("./Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]HTTP/1.1 404 Not Found\n", temp); + fclose(log); + } else { + fread(htmlstr, BUF_SIZE, 1, index); + fclose(index); + struct stat file_stat; + stat("./static_site/index.html", &file_stat); + char last_modified[100]; + strftime(last_modified, sizeof(last_modified), "%a, %d %b %Y %H:%M:%S %Z", localtime(&file_stat.st_mtime)); + + sprintf(response, "HTTP/1.1 200 OK\r\n" + "Server: liso/1.1\r\n" + "Date: %s\r\n" + "Content-Length: %ld\r\n" + "Content-Type: text/html\r\n" + "Last-Modified: %s\r\n" + "Connection: keep-alive\r\n\r\n%s", + temp, strlen(htmlstr), last_modified, htmlstr); + + FILE *log = fopen("Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]200 OK, responded for request GET\n", temp); + fclose(log); + } + } else if (strcmp(request[k]->http_method, "HEAD") == 0) { + FILE *file = fopen("./static_site/index.html", "r"); + if (file == NULL || strcmp(request[k]->http_uri, "/") != 0) { + sprintf(response, "HTTP/1.1 404 Not Found\r\n\r\n"); + } else { + fclose(file); + struct stat file_stat; + stat("./static_site/index.html", &file_stat); + char last_modified[100]; + strftime(last_modified, sizeof(last_modified), "%a, %d %b %Y %H:%M:%S %Z", localtime(&file_stat.st_mtime)); + + sprintf(response, "HTTP/1.1 200 OK\r\n" + "Server: liso/1.1\r\n" + "Date: %s\r\n" + "Content-Length: %ld\r\n" + "Content-Type: text/html\r\n" + "Last-Modified: %s\r\n" + "Connection: keep-alive\r\n\r\n", + temp, (long)file_stat.st_size, last_modified); + } + } else if (strcmp(request[k]->http_method, "POST") == 0) { + sprintf(response, "HTTP/1.1 200 OK\r\n\r\n"); + FILE *log = fopen("Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]200 OK, responded for request POST\n", temp); + fclose(log); + } else { + sprintf(response, "HTTP/1.1 501 Not Implemented\r\n\r\n"); + FILE *log = fopen("Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]HTTP/1.1 501 Not Implemented\n", temp); + fclose(log); + } + } else { + sprintf(response, "HTTP/1.1 505 HTTP Version Not Supported\r\n\r\n"); + FILE *log = fopen("Log.txt", "a"); + fprintf(log, "[Date: %s][client: 127.0.0.1:38636]HTTP/1.1 505 HTTP Version Not Supported\n", temp); + fclose(log); + } + } + + strcat(buffer, response); + } + return buffer; +} + + +int close_socket(int sock) { + if (close(sock)) { + fprintf(stderr, "Failed closing socket.\n"); + return 1; + } + return 0; +} + +int main(int argc, char* argv[]) { + int server_sockfd, client_sockfd; + fd_set readfds, testfds; + struct sockaddr_in server_address, client_address; + char buf[BUF_SIZE*2]; + char *pro_buf; + socklen_t client_len; + ssize_t readret; + int ready_num, fd, nread; + + fprintf(stdout, "----- Liso Server -----\n"); + + if ((server_sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1) { + fprintf(stderr, "Failed creating socket.\n"); + return EXIT_FAILURE; + } + + server_address.sin_family = AF_INET; + server_address.sin_port = htons(ECHO_PORT); + server_address.sin_addr.s_addr = INADDR_ANY; + + // 绑定 + if (bind(server_sockfd, (struct sockaddr *) &server_address, sizeof(server_address))) { + close_socket(server_sockfd); + fprintf(stderr, "Failed binding socket.\n"); + return EXIT_FAILURE; + } + + // 监听 + if (listen(server_sockfd, 5)) { + close_socket(server_sockfd); + fprintf(stderr, "Error listening on socket.\n"); + return EXIT_FAILURE; + } + + FD_ZERO(&readfds); + FD_SET(server_sockfd, &readfds); + + while (1) { + testfds = readfds; + printf("server waiting\n"); + + ready_num = select(FD_SETSIZE, &testfds, NULL, NULL, NULL); + if (ready_num < 1) { + perror("server"); + exit(1); + } + + for (fd = 0; fd < FD_SETSIZE; fd++) { + if (FD_ISSET(fd, &testfds)) { + if (fd == server_sockfd) { + client_len = sizeof(client_address); + client_sockfd = accept(server_sockfd, (struct sockaddr *)&client_address, &client_len); + if (client_sockfd == -1) { + perror("accept"); + continue; + } + FD_SET(client_sockfd, &readfds); + printf("adding client on fd %d\n", client_sockfd); + } else { + ioctl(fd, FIONREAD, &nread); + if (nread == 0) { + close(fd); + FD_CLR(fd, &readfds); + printf("removing client on fd %d\n", fd); + } else { + readret = read(fd, buf, BUF_SIZE); + if (readret > 0) { + pro_buf = process(buf, readret); + write(fd, pro_buf, strlen(pro_buf)); + free(pro_buf); + memset(buf, 0, BUF_SIZE); + } else if (readret == -1) { + perror("read"); + close(fd); + FD_CLR(fd, &readfds); + } + printf("serving client on fd %d\n", fd); + } + } + } + } + } + return EXIT_SUCCESS; +} \ No newline at end of file diff --git a/src/parse.c b/src/parse.c new file mode 100644 index 0000000..901c655 --- /dev/null +++ b/src/parse.c @@ -0,0 +1,77 @@ +#include "parse.h" + +/** +* Given a char buffer returns the parsed request headers +*/ + + + +Request** parse(char *buffer, int size, int socketFd,int* request_num) { + //1. divided to multiple requests and stored to substring + //2. set_parsing_options and yyparse, using loop store to **requests + //3. return + int i = 0; + int temp = 0; + //Valid End State + Request *request = (Request *) malloc(sizeof(Request)); + //restore the information of each request + char** substring = (char**)malloc(sizeof(char*)*8192); + char** address = (char**)malloc(sizeof(char*)*8192); + int* strlength = (int*)malloc(sizeof(int)*8192); + for(i=0;i<100;i++){ + substring[i] = (char*)malloc(sizeof(char)*8192); + address[i] = (char*)malloc(sizeof(char)*8192); + } + + + request->header_count=0; + //TODO You will need to handle resizing this in parser.y + + // request->headers = (Request_header *) malloc(sizeof(Request_header)*1); //storage overflow + //TODO I need to parse like this: 1.get substring 2.transform to request 3.store request to requests + address[0] = buffer; + + while(strstr(address[*request_num],"\r\n\r\n")){ + *request_num = *request_num + 1; + address[*request_num] = strstr(address[*request_num - 1],"\r\n\r\n"); + address[*request_num] = address[*request_num] + 4; + + } + + strlength[0] = address[1]-address[0]; + strncpy(substring[0],address[0],strlength[0]); + + for(temp = 1;temp < *request_num;temp++){ + strlength[temp] = address[temp + 1]-address[temp]; + strncpy(substring[temp],address[temp],strlength[temp]); + } + + Request** requests = (Request**)malloc(sizeof(Request*)*4000); + for(i=0;i<*request_num;i++){ + requests[i] = (Request*)malloc(sizeof(Request)*1000); + } + + for(i = 0;i < *request_num; i++){ + set_parsing_options(substring[i], strlength[i], request); + yylex_destroy(); + if (yyparse() == SUCCESS) { + strcpy(requests[i]->http_method, request->http_method); + strcpy(requests[i]->http_uri, request->http_uri); + strcpy(requests[i]->http_version, request->http_version); + } + else{ + requests[i] = NULL; + free(requests[i]); + } + } + + + return requests; + + //TODO Handle Malformed Requests + yylex_destroy(); + printf("Parsing Failed\n"); + return NULL; +} + + diff --git a/src/parser.y b/src/parser.y new file mode 100644 index 0000000..30ee91a --- /dev/null +++ b/src/parser.y @@ -0,0 +1,241 @@ +/** + * @file parser.y + * @brief Grammar for HTTP + * @author Rajul Bhatnagar (2016) + */ + +%{ +#include "parse.h" + +/* Define YACCDEBUG to enable debug messages for this lex file */ +//#define YACCDEBUG +#define YYERROR_VERBOSE +#ifdef YACCDEBUG +#include +#define YPRINTF(...) printf(__VA_ARGS__) +#else +#define YPRINTF(...) +#endif + +/* yyparse() calls yyerror() on error */ +void yyerror (const char *s); + +void set_parsing_options(char *buf, size_t siz, Request *parsing_request); + +/* yyparse() calls yylex() to get tokens */ +extern int yylex(); + + +/* +** Global variables required for parsing from buffer +** instead of stdin: +*/ + +/* Pointer to the buffer that contains input */ +char *parsing_buf; + +/* Current position in the buffer */ +int parsing_offset; + +/* Buffer size */ +size_t parsing_buf_siz; + +/* Current parsing_request Header Struct */ +Request *parsing_request; + +%} + + +/* Various types values that we can get from lex */ +%union { + char str[8192]; + int i; +} + +%start request + +/* + * Tokens that yacc expects from lex, essentially these are the tokens + * declared in declaration section of lex file. + */ +%token t_crlf +%token t_backslash +%token t_slash +%token t_digit +%token t_dot +%token t_token_char +%token t_lws +%token t_colon +%token t_separators +%token t_sp +%token t_ws +%token t_ctl + +/* Type of value returned for these tokens */ +%type t_crlf +%type t_backslash +%type t_slash +%type t_digit +%type t_dot +%type t_token_char +%type t_lws +%type t_colon +%type t_separators +%type t_sp +%type t_ws +%type t_ctl + +/* + * Followed by this, you should have types defined for all the intermediate + * rules that you will define. These are some of the intermediate rules: + */ +%type allowed_char_for_token +%type allowed_char_for_text +%type ows +%type token +%type text + +%% + +/* +** The following 2 rules define a token. +*/ + +/* + * Rule 1: Allowed characters in a token + * + * An excerpt from RFC 2616: + * -- + * token = 1* + * -- + */ +allowed_char_for_token: +t_token_char; | +t_digit { + $$ = '0' + $1; +}; | +t_dot; + +/* + * Rule 2: A token is a sequence of all allowed token chars. + */ +token: +allowed_char_for_token { + YPRINTF("token: Matched rule 1.\n"); + snprintf($$, 8192, "%c", $1); +}; | +token allowed_char_for_token { + YPRINTF("token: Matched rule 2.\n"); + memcpy($$, $1, strlen($1)); + $$[strlen($1)] = $2; + $$[strlen($1) + 1] = 0; + // snprintf($$, 8192, "%s%c", $1, $2); +}; + +/* +** The following 2 rules define text. +*/ +/* + * + * Rule 3: Allowed characters in text + * + * An excerpt from RFC 2616, section 2.2: + * -- + * The TEXT rule is only used for descriptive field contents and values + * that are not intended to be interpreted by the message parser. Words + * of *TEXT MAY contain characters from character sets other than ISO- + * 8859-1 [22] only when encoded according to the rules of RFC 2047 + * [14]. + * + * TEXT = + * -- + * + */ + +allowed_char_for_text: +allowed_char_for_token; | +t_separators { + $$ = $1; +}; | +t_colon { + $$ = $1; +}; | +t_slash { + $$ = $1; +}; + +/* + * Rule 4: Text is a sequence of characters allowed in text as per RFC. May + * also contains spaces. + */ +text: allowed_char_for_text { + YPRINTF("text: Matched rule 1.\n"); + snprintf($$, 8192, "%c", $1); +}; | +text ows allowed_char_for_text { + YPRINTF("text: Matched rule 2.\n"); + memcpy($$, $1, strlen($1)); + memcpy($$ + strlen($1), $2, strlen($2)); + $$[strlen($1) + strlen($2)] = $3; + $$[strlen($1) + strlen($2) + 1] = 0; + // snprintf($$, 8192, "%s%s%c", $1, $2, $3); +}; + +/* + * Rule 5: Optional white spaces + */ +ows: { + YPRINTF("OWS: Matched rule 1\n"); + $$[0]=0; +}; | +t_sp { + YPRINTF("OWS: Matched rule 2\n"); + snprintf($$, 8192, "%c", $1); +}; | +t_ws { + YPRINTF("OWS: Matched rule 3\n"); + snprintf($$, 8192, "%s", $1); +}; + +request_line: token t_sp text t_sp text t_crlf { + YPRINTF("request_Line:\n%s\n%s\n%s\n",$1, $3,$5); + strcpy(parsing_request->http_method, $1); + strcpy(parsing_request->http_uri, $3); + strcpy(parsing_request->http_version, $5); +} + +request_header: token ows t_colon ows text ows t_crlf { + parsing_request->headers = (Request_header *) realloc(parsing_request->headers,sizeof(Request_header)*((parsing_request->header_count) + 1)); + YPRINTF("request_Header:\n%s\n%s\n",$1,$5); + strcpy(parsing_request->headers[parsing_request->header_count].header_name, $1); + strcpy(parsing_request->headers[parsing_request->header_count].header_value, $5); + parsing_request->header_count++; +}; +| request_header request_header{ + YPRINTF("request_Header pattern 2\n"); +}; + +/* + * You need to fill this rule, and you are done! You have all the assembly + * needed. You may wish to define your own rules. Please read RFC 2616. + * All the best! + * + */ +request: request_line request_header t_crlf{ + YPRINTF("parsing_request: Matched Success.\n"); + return SUCCESS; +}; + +%% + +/* C code */ + +void set_parsing_options(char *buf, size_t siz, Request *request) +{ + parsing_buf = buf; + parsing_offset = 0; + parsing_buf_siz = siz; + parsing_request = request; +} + +void yyerror (const char *s) {fprintf (stderr, "%s\n", s);} \ No newline at end of file diff --git a/src/y.tab.c b/src/y.tab.c new file mode 100644 index 0000000..5050997 --- /dev/null +++ b/src/y.tab.c @@ -0,0 +1,1669 @@ +/* A Bison parser, made by GNU Bison 3.0.4. */ + +/* Bison implementation for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "3.0.4" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 0 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + + + + +/* Copy the first part of user declarations. */ +#line 7 "src/parser.y" /* yacc.c:339 */ + +#include "parse.h" + +/* Define YACCDEBUG to enable debug messages for this lex file */ +//#define YACCDEBUG +#define YYERROR_VERBOSE +#ifdef YACCDEBUG +#include +#define YPRINTF(...) printf(__VA_ARGS__) +#else +#define YPRINTF(...) +#endif + +/* yyparse() calls yyerror() on error */ +void yyerror (const char *s); + +void set_parsing_options(char *buf, size_t siz, Request *parsing_request); + +/* yyparse() calls yylex() to get tokens */ +extern int yylex(); + + +/* +** Global variables required for parsing from buffer +** instead of stdin: +*/ + +/* Pointer to the buffer that contains input */ +char *parsing_buf; + +/* Current position in the buffer */ +int parsing_offset; + +/* Buffer size */ +size_t parsing_buf_siz; + +/* Current parsing_request Header Struct */ +Request *parsing_request; + + +#line 107 "y.tab.c" /* yacc.c:339 */ + +# ifndef YY_NULLPTR +# if defined __cplusplus && 201103L <= __cplusplus +# define YY_NULLPTR nullptr +# else +# define YY_NULLPTR 0 +# endif +# endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 +#endif + +/* In a future release of Bison, this section will be replaced + by #include "y.tab.h". */ +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* Debug traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Token type. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + enum yytokentype + { + t_crlf = 258, + t_backslash = 259, + t_slash = 260, + t_digit = 261, + t_dot = 262, + t_token_char = 263, + t_lws = 264, + t_colon = 265, + t_separators = 266, + t_sp = 267, + t_ws = 268, + t_ctl = 269 + }; +#endif +/* Tokens. */ +#define t_crlf 258 +#define t_backslash 259 +#define t_slash 260 +#define t_digit 261 +#define t_dot 262 +#define t_token_char 263 +#define t_lws 264 +#define t_colon 265 +#define t_separators 266 +#define t_sp 267 +#define t_ws 268 +#define t_ctl 269 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED + +union YYSTYPE +{ +#line 50 "src/parser.y" /* yacc.c:355 */ + + char str[8192]; + int i; + +#line 180 "y.tab.c" /* yacc.c:355 */ +}; + +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + +extern YYSTYPE yylval; + +int yyparse (void); + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ + +/* Copy the second part of user declarations. */ + +#line 197 "y.tab.c" /* yacc.c:358 */ + +#ifdef short +# undef short +#endif + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; +#endif + +#ifdef YYTYPE_INT8 +typedef YYTYPE_INT8 yytype_int8; +#else +typedef signed char yytype_int8; +#endif + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; +#endif + +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif ! defined YYSIZE_T +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned int +# endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + +#ifndef YY_ +# if defined YYENABLE_NLS && YYENABLE_NLS +# if ENABLE_NLS +# include /* INFRINGES ON USER NAME SPACE */ +# define YY_(Msgid) dgettext ("bison-runtime", Msgid) +# endif +# endif +# ifndef YY_ +# define YY_(Msgid) Msgid +# endif +#endif + +#ifndef YY_ATTRIBUTE +# if (defined __GNUC__ \ + && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__))) \ + || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C +# define YY_ATTRIBUTE(Spec) __attribute__(Spec) +# else +# define YY_ATTRIBUTE(Spec) /* empty */ +# endif +#endif + +#ifndef YY_ATTRIBUTE_PURE +# define YY_ATTRIBUTE_PURE YY_ATTRIBUTE ((__pure__)) +#endif + +#ifndef YY_ATTRIBUTE_UNUSED +# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__)) +#endif + +#if !defined _Noreturn \ + && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112) +# if defined _MSC_VER && 1200 <= _MSC_VER +# define _Noreturn __declspec (noreturn) +# else +# define _Noreturn YY_ATTRIBUTE ((__noreturn__)) +# endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define YYUSE(E) ((void) (E)) +#else +# define YYUSE(E) /* empty */ +#endif + +#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__ +/* Suppress an incorrect diagnostic about yylval being uninitialized. */ +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\ + _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"") +# define YY_IGNORE_MAYBE_UNINITIALIZED_END \ + _Pragma ("GCC diagnostic pop") +#else +# define YY_INITIAL_VALUE(Value) Value +#endif +#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_END +#endif +#ifndef YY_INITIAL_VALUE +# define YY_INITIAL_VALUE(Value) /* Nothing. */ +#endif + + +#if ! defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# elif defined __BUILTIN_VA_ARG_INCR +# include /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS +# include /* INFRINGES ON USER NAME SPACE */ + /* Use EXIT_SUCCESS as a witness for stdlib.h. */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's 'empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +# endif +# else +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# if (defined __cplusplus && ! defined EXIT_SUCCESS \ + && ! ((defined YYMALLOC || defined malloc) \ + && (defined YYFREE || defined free))) +# include /* INFRINGES ON USER NAME SPACE */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if ! defined malloc && ! defined EXIT_SUCCESS +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if ! defined free && ! defined EXIT_SUCCESS +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + + +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + yytype_int16 yyss_alloc; + YYSTYPE yyvs_alloc; +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \ + + YYSTACK_GAP_MAXIMUM) + +# define YYCOPY_NEEDED 1 + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Stack_alloc, Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \ + Stack = &yyptr->Stack_alloc; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (0) + +#endif + +#if defined YYCOPY_NEEDED && YYCOPY_NEEDED +/* Copy COUNT objects from SRC to DST. The source and destination do + not overlap. */ +# ifndef YYCOPY +# if defined __GNUC__ && 1 < __GNUC__ +# define YYCOPY(Dst, Src, Count) \ + __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src))) +# else +# define YYCOPY(Dst, Src, Count) \ + do \ + { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (Dst)[yyi] = (Src)[yyi]; \ + } \ + while (0) +# endif +# endif +#endif /* !YYCOPY_NEEDED */ + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 12 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 52 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 15 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 9 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 19 +/* YYNSTATES -- Number of states. */ +#define YYNSTATES 34 + +/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned + by yylex, with out-of-bounds checking. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 269 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM + as returned by yylex, without out-of-bounds checking. */ +static const yytype_uint8 yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 +}; + +#if YYDEBUG + /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ +static const yytype_uint8 yyrline[] = +{ + 0, 113, 113, 114, 117, 123, 127, 156, 157, 160, + 163, 171, 175, 187, 191, 195, 200, 207, 214, 224 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE || 0 +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "$end", "error", "$undefined", "t_crlf", "t_backslash", "t_slash", + "t_digit", "t_dot", "t_token_char", "t_lws", "t_colon", "t_separators", + "t_sp", "t_ws", "t_ctl", "$accept", "allowed_char_for_token", "token", + "allowed_char_for_text", "text", "ows", "request_line", "request_header", + "request", YY_NULLPTR +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[NUM] -- (External) token number corresponding to the + (internal) symbol number NUM (which must be that of a token). */ +static const yytype_uint16 yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, + 265, 266, 267, 268, 269 +}; +# endif + +#define YYPACT_NINF -24 + +#define yypact_value_is_default(Yystate) \ + (!!((Yystate) == (-24))) + +#define YYTABLE_NINF -1 + +#define yytable_value_is_error(Yytable_value) \ + 0 + + /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +static const yytype_int8 yypact[] = +{ + 30, -24, -24, -24, -24, 13, 30, 7, 36, -24, + 27, 42, -24, -24, -24, -24, -24, -24, 3, -24, + -24, 2, -24, 30, 36, 36, 39, 1, -24, 36, + -24, 39, 21, -24 +}; + + /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE does not specify something else to do. Zero + means the default is an error. */ +static const yytype_uint8 yydefact[] = +{ + 0, 3, 4, 2, 5, 0, 0, 0, 0, 6, + 13, 0, 1, 10, 9, 8, 7, 11, 13, 14, + 15, 0, 19, 18, 0, 0, 13, 13, 12, 0, + 16, 13, 0, 17 +}; + + /* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -24, 0, 18, -23, -21, -9, -24, 24, -24 +}; + + /* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + -1, 16, 10, 17, 18, 25, 6, 23, 7 +}; + + /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule whose + number is the opposite. If YYTABLE_NINF, syntax error. */ +static const yytype_uint8 yytable[] = +{ + 4, 21, 28, 27, 30, 9, 4, 12, 31, 28, + 9, 4, 26, 19, 20, 24, 20, 29, 5, 1, + 2, 3, 32, 4, 33, 8, 13, 1, 2, 3, + 11, 14, 15, 1, 2, 3, 1, 2, 3, 19, + 20, 13, 1, 2, 3, 22, 14, 15, 1, 2, + 3, 19, 20 +}; + +static const yytype_uint8 yycheck[] = +{ + 0, 10, 25, 24, 3, 5, 6, 0, 29, 32, + 10, 11, 10, 12, 13, 12, 13, 26, 0, 6, + 7, 8, 31, 23, 3, 12, 5, 6, 7, 8, + 6, 10, 11, 6, 7, 8, 6, 7, 8, 12, + 13, 5, 6, 7, 8, 3, 10, 11, 6, 7, + 8, 12, 13 +}; + + /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = +{ + 0, 6, 7, 8, 16, 17, 21, 23, 12, 16, + 17, 22, 0, 5, 10, 11, 16, 18, 19, 12, + 13, 20, 3, 22, 12, 20, 10, 19, 18, 20, + 3, 19, 20, 3 +}; + + /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = +{ + 0, 15, 16, 16, 16, 17, 17, 18, 18, 18, + 18, 19, 19, 20, 20, 20, 21, 22, 22, 23 +}; + + /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = +{ + 0, 2, 1, 1, 1, 1, 2, 1, 1, 1, + 1, 1, 3, 0, 1, 1, 6, 7, 2, 3 +}; + + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab + + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK (yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } \ + else \ + { \ + yyerror (YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ +while (0) + +/* Error token number */ +#define YYTERROR 1 +#define YYERRCODE 256 + + + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (0) + +/* This macro is provided for backward compatibility. */ +#ifndef YY_LOCATION_PRINT +# define YY_LOCATION_PRINT(File, Loc) ((void) 0) +#endif + + +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Type, Value); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (0) + + +/*----------------------------------------. +| Print this symbol's value on YYOUTPUT. | +`----------------------------------------*/ + +static void +yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +{ + FILE *yyo = yyoutput; + YYUSE (yyo); + if (!yyvaluep) + return; +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# endif + YYUSE (yytype); +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +static void +yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +{ + YYFPRINTF (yyoutput, "%s %s (", + yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]); + + yy_symbol_value_print (yyoutput, yytype, yyvaluep); + YYFPRINTF (yyoutput, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +static void +yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop) +{ + YYFPRINTF (stderr, "Stack now"); + for (; yybottom <= yytop; yybottom++) + { + int yybot = *yybottom; + YYFPRINTF (stderr, " %d", yybot); + } + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (0) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +static void +yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule) +{ + unsigned long int yylno = yyrline[yyrule]; + int yynrhs = yyr2[yyrule]; + int yyi; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + YYFPRINTF (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, + yystos[yyssp[yyi + 1 - yynrhs]], + &(yyvsp[(yyi + 1) - (yynrhs)]) + ); + YYFPRINTF (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyssp, yyvsp, Rule); \ +} while (0) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined __GLIBC__ && defined _STRING_H +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +static YYSIZE_T +yystrlen (const char *yystr) +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +# endif +# endif + +# ifndef yystpcpy +# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +static char * +yystpcpy (char *yydest, const char *yysrc) +{ + char *yyd = yydest; + const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + YYSIZE_T yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message + about the unexpected token YYTOKEN for the state stack whose top is + YYSSP. + + Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is + not large enough to hold the message. In that case, also set + *YYMSG_ALLOC to the required number of bytes. Return 2 if the + required number of bytes is too large to store. */ +static int +yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, + yytype_int16 *yyssp, int yytoken) +{ + YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]); + YYSIZE_T yysize = yysize0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + /* Internationalized format string. */ + const char *yyformat = YY_NULLPTR; + /* Arguments of yyformat. */ + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + /* Number of reported tokens (one for the "unexpected", one per + "expected"). */ + int yycount = 0; + + /* There are many possibilities here to consider: + - If this state is a consistent state with a default action, then + the only way this function was invoked is if the default action + is an error action. In that case, don't check for expected + tokens because there are none. + - The only way there can be no lookahead present (in yychar) is if + this state is a consistent state with a default action. Thus, + detecting the absence of a lookahead is sufficient to determine + that there is no unexpected or expected token to report. In that + case, just report a simple "syntax error". + - Don't assume there isn't a lookahead just because this state is a + consistent state with a default action. There might have been a + previous inconsistent state, consistent state with a non-default + action, or user semantic action that manipulated yychar. + - Of course, the expected token list depends on states to have + correct lookahead information, and it depends on the parser not + to perform extra reductions after fetching a lookahead from the + scanner and before detecting a syntax error. Thus, state merging + (from LALR or IELR) and default reductions corrupt the expected + token list. However, the list is correct for canonical LR with + one exception: it will still contain any token that will not be + accepted due to an error action in a later state. + */ + if (yytoken != YYEMPTY) + { + int yyn = yypact[*yyssp]; + yyarg[yycount++] = yytname[yytoken]; + if (!yypact_value_is_default (yyn)) + { + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. In other words, skip the first -YYN actions for + this state because they are default actions. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn + 1; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yyx; + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR + && !yytable_value_is_error (yytable[yyx + yyn])) + { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) + { + yycount = 1; + yysize = yysize0; + break; + } + yyarg[yycount++] = yytname[yyx]; + { + YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]); + if (! (yysize <= yysize1 + && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + } + } + } + + switch (yycount) + { +# define YYCASE_(N, S) \ + case N: \ + yyformat = S; \ + break + YYCASE_(0, YY_("syntax error")); + YYCASE_(1, YY_("syntax error, unexpected %s")); + YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s")); + YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s")); + YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s")); + YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s")); +# undef YYCASE_ + } + + { + YYSIZE_T yysize1 = yysize + yystrlen (yyformat); + if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + + if (*yymsg_alloc < yysize) + { + *yymsg_alloc = 2 * yysize; + if (! (yysize <= *yymsg_alloc + && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM)) + *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM; + return 1; + } + + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + { + char *yyp = *yymsg; + int yyi = 0; + while ((*yyp = *yyformat) != '\0') + if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyformat += 2; + } + else + { + yyp++; + yyformat++; + } + } + return 0; +} +#endif /* YYERROR_VERBOSE */ + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +static void +yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep) +{ + YYUSE (yyvaluep); + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + YYUSE (yytype); + YY_IGNORE_MAYBE_UNINITIALIZED_END +} + + + + +/* The lookahead symbol. */ +int yychar; + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval; +/* Number of syntax errors so far. */ +int yynerrs; + + +/*----------. +| yyparse. | +`----------*/ + +int +yyparse (void) +{ + int yystate; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + + /* The stacks and their tools: + 'yyss': related to states. + 'yyvs': related to semantic values. + + Refer to the stacks through separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16 *yyss; + yytype_int16 *yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs; + YYSTYPE *yyvsp; + + YYSIZE_T yystacksize; + + int yyn; + int yyresult; + /* Lookahead token as an internal (translated) token number. */ + int yytoken = 0; + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char *yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + yyssp = yyss = yyssa; + yyvsp = yyvs = yyvsa; + yystacksize = YYINITDEPTH; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + goto yysetstate; + +/*------------------------------------------------------------. +| yynewstate -- Push a new state, which is found in yystate. | +`------------------------------------------------------------*/ + yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + + yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) + { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE *yyvs1 = yyvs; + yytype_int16 *yyss1 = yyss; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow (YY_("memory exhausted"), + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yystacksize); + + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +# ifndef YYSTACK_RELOCATE + goto yyexhaustedlab; +# else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yytype_int16 *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyexhaustedlab; + YYSTACK_RELOCATE (yyss_alloc, yyss); + YYSTACK_RELOCATE (yyvs_alloc, yyvs); +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + YYDPRINTF ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + + if (yystate == YYFINAL) + YYACCEPT; + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + + /* Do appropriate processing given the current state. Read a + lookahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to lookahead token. */ + yyn = yypact[yystate]; + if (yypact_value_is_default (yyn)) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token: ")); + yychar = yylex (); + } + + if (yychar <= YYEOF) + { + yychar = yytoken = YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else + { + yytoken = YYTRANSLATE (yychar); + YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yytable_value_is_error (yyn)) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + /* Shift the lookahead token. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token. */ + yychar = YYEMPTY; + + yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + '$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 3: +#line 114 "src/parser.y" /* yacc.c:1646 */ + { + (yyval.i) = '0' + (yyvsp[0].i); +} +#line 1291 "y.tab.c" /* yacc.c:1646 */ + break; + + case 5: +#line 123 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("token: Matched rule 1.\n"); + snprintf((yyval.str), 8192, "%c", (yyvsp[0].i)); +} +#line 1300 "y.tab.c" /* yacc.c:1646 */ + break; + + case 6: +#line 127 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("token: Matched rule 2.\n"); + memcpy((yyval.str), (yyvsp[-1].str), strlen((yyvsp[-1].str))); + (yyval.str)[strlen((yyvsp[-1].str))] = (yyvsp[0].i); + (yyval.str)[strlen((yyvsp[-1].str)) + 1] = 0; + // snprintf($$, 8192, "%s%c", $1, $2); +} +#line 1312 "y.tab.c" /* yacc.c:1646 */ + break; + + case 8: +#line 157 "src/parser.y" /* yacc.c:1646 */ + { + (yyval.i) = (yyvsp[0].i); +} +#line 1320 "y.tab.c" /* yacc.c:1646 */ + break; + + case 9: +#line 160 "src/parser.y" /* yacc.c:1646 */ + { + (yyval.i) = (yyvsp[0].i); +} +#line 1328 "y.tab.c" /* yacc.c:1646 */ + break; + + case 10: +#line 163 "src/parser.y" /* yacc.c:1646 */ + { + (yyval.i) = (yyvsp[0].i); +} +#line 1336 "y.tab.c" /* yacc.c:1646 */ + break; + + case 11: +#line 171 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("text: Matched rule 1.\n"); + snprintf((yyval.str), 8192, "%c", (yyvsp[0].i)); +} +#line 1345 "y.tab.c" /* yacc.c:1646 */ + break; + + case 12: +#line 175 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("text: Matched rule 2.\n"); + memcpy((yyval.str), (yyvsp[-2].str), strlen((yyvsp[-2].str))); + memcpy((yyval.str) + strlen((yyvsp[-2].str)), (yyvsp[-1].str), strlen((yyvsp[-1].str))); + (yyval.str)[strlen((yyvsp[-2].str)) + strlen((yyvsp[-1].str))] = (yyvsp[0].i); + (yyval.str)[strlen((yyvsp[-2].str)) + strlen((yyvsp[-1].str)) + 1] = 0; + // snprintf($$, 8192, "%s%s%c", $1, $2, $3); +} +#line 1358 "y.tab.c" /* yacc.c:1646 */ + break; + + case 13: +#line 187 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("OWS: Matched rule 1\n"); + (yyval.str)[0]=0; +} +#line 1367 "y.tab.c" /* yacc.c:1646 */ + break; + + case 14: +#line 191 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("OWS: Matched rule 2\n"); + snprintf((yyval.str), 8192, "%c", (yyvsp[0].i)); +} +#line 1376 "y.tab.c" /* yacc.c:1646 */ + break; + + case 15: +#line 195 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("OWS: Matched rule 3\n"); + snprintf((yyval.str), 8192, "%s", (yyvsp[0].str)); +} +#line 1385 "y.tab.c" /* yacc.c:1646 */ + break; + + case 16: +#line 200 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("request_Line:\n%s\n%s\n%s\n",(yyvsp[-5].str), (yyvsp[-3].str),(yyvsp[-1].str)); + strcpy(parsing_request->http_method, (yyvsp[-5].str)); + strcpy(parsing_request->http_uri, (yyvsp[-3].str)); + strcpy(parsing_request->http_version, (yyvsp[-1].str)); +} +#line 1396 "y.tab.c" /* yacc.c:1646 */ + break; + + case 17: +#line 207 "src/parser.y" /* yacc.c:1646 */ + { + parsing_request->headers = (Request_header *) realloc(parsing_request->headers,sizeof(Request_header)*((parsing_request->header_count) + 1)); + YPRINTF("request_Header:\n%s\n%s\n",(yyvsp[-6].str),(yyvsp[-2].str)); + strcpy(parsing_request->headers[parsing_request->header_count].header_name, (yyvsp[-6].str)); + strcpy(parsing_request->headers[parsing_request->header_count].header_value, (yyvsp[-2].str)); + parsing_request->header_count++; +} +#line 1408 "y.tab.c" /* yacc.c:1646 */ + break; + + case 18: +#line 214 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("request_Header pattern 2\n"); +} +#line 1416 "y.tab.c" /* yacc.c:1646 */ + break; + + case 19: +#line 224 "src/parser.y" /* yacc.c:1646 */ + { + YPRINTF("parsing_request: Matched Success.\n"); + return SUCCESS; +} +#line 1425 "y.tab.c" /* yacc.c:1646 */ + break; + + +#line 1429 "y.tab.c" /* yacc.c:1646 */ + default: break; + } + /* User semantic actions sometimes alter yychar, and that requires + that yytoken be updated with the new translation. We take the + approach of translating immediately before every use of yytoken. + One alternative is translating here after every semantic action, + but that translation would be missed if the semantic action invokes + YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or + if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an + incorrect destructor might then be invoked immediately. In the + case of YYERROR or YYBACKUP, subsequent parser actions might lead + to an incorrect destructor call or verbose syntax error message + before the lookahead is translated. */ + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + + *++yyvsp = yyval; + + /* Now 'shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + + +/*--------------------------------------. +| yyerrlab -- here on detecting error. | +`--------------------------------------*/ +yyerrlab: + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar); + + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; +#if ! YYERROR_VERBOSE + yyerror (YY_("syntax error")); +#else +# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \ + yyssp, yytoken) + { + char const *yymsgp = YY_("syntax error"); + int yysyntax_error_status; + yysyntax_error_status = YYSYNTAX_ERROR; + if (yysyntax_error_status == 0) + yymsgp = yymsg; + else if (yysyntax_error_status == 1) + { + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); + yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc); + if (!yymsg) + { + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; + yysyntax_error_status = 2; + } + else + { + yysyntax_error_status = YYSYNTAX_ERROR; + yymsgp = yymsg; + } + } + yyerror (yymsgp); + if (yysyntax_error_status == 2) + goto yyexhaustedlab; + } +# undef YYSYNTAX_ERROR +#endif + } + + + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + if (yychar <= YYEOF) + { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } + else + { + yydestruct ("Error: discarding", + yytoken, &yylval); + yychar = YYEMPTY; + } + } + + /* Else will try to reuse lookahead token after shifting the error + token. */ + goto yyerrlab1; + + +/*---------------------------------------------------. +| yyerrorlab -- error raised explicitly by YYERROR. | +`---------------------------------------------------*/ +yyerrorlab: + + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + /* Do not reclaim the symbols of the rule whose action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + yystate = *yyssp; + goto yyerrlab1; + + +/*-------------------------------------------------------------. +| yyerrlab1 -- common code for both syntax error and YYERROR. | +`-------------------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) + { + yyn = yypact[yystate]; + if (!yypact_value_is_default (yyn)) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + + yydestruct ("Error: popping", + yystos[yystate], yyvsp); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#if !defined yyoverflow || YYERROR_VERBOSE +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEMPTY) + { + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = YYTRANSLATE (yychar); + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval); + } + /* Do not reclaim the symbols of the rule whose action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); +#endif + return yyresult; +} +#line 229 "src/parser.y" /* yacc.c:1906 */ + + +/* C code */ + +void set_parsing_options(char *buf, size_t siz, Request *request) +{ + parsing_buf = buf; + parsing_offset = 0; + parsing_buf_siz = siz; + parsing_request = request; +} + +void yyerror (const char *s) {fprintf (stderr, "%s\n", s);} diff --git a/src/y.tab.h b/src/y.tab.h new file mode 100644 index 0000000..6908b02 --- /dev/null +++ b/src/y.tab.h @@ -0,0 +1,99 @@ +/* A Bison parser, made by GNU Bison 3.0.4. */ + +/* Bison interface for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* Debug traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Token type. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + enum yytokentype + { + t_crlf = 258, + t_backslash = 259, + t_slash = 260, + t_digit = 261, + t_dot = 262, + t_token_char = 263, + t_lws = 264, + t_colon = 265, + t_separators = 266, + t_sp = 267, + t_ws = 268, + t_ctl = 269 + }; +#endif +/* Tokens. */ +#define t_crlf 258 +#define t_backslash 259 +#define t_slash 260 +#define t_digit 261 +#define t_dot 262 +#define t_token_char 263 +#define t_lws 264 +#define t_colon 265 +#define t_separators 266 +#define t_sp 267 +#define t_ws 268 +#define t_ctl 269 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED + +union YYSTYPE +{ +#line 50 "src/parser.y" /* yacc.c:1909 */ + + char str[8192]; + int i; + +#line 87 "y.tab.h" /* yacc.c:1909 */ +}; + +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + +extern YYSTYPE yylval; + +int yyparse (void); + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ diff --git a/static_site/images/liso_header.png b/static_site/images/liso_header.png new file mode 100644 index 0000000..e6e85d8 Binary files /dev/null and b/static_site/images/liso_header.png differ diff --git a/static_site/index.html b/static_site/index.html new file mode 100644 index 0000000..a538262 --- /dev/null +++ b/static_site/index.html @@ -0,0 +1,20 @@ + + + + + Liso the Friendly Web Server + + + + +
+ Liso the Friendly Web Server +

Welcome to the Liso 1.0 web server. If you see this page then + congratulations! Your Liso web server is up and running now!

+

This Liso web server was implemented by: xxxxxxx + <xxxxx@andrew.cmu.edu + >

+
+ + + diff --git a/static_site/style.css b/static_site/style.css new file mode 100644 index 0000000..a55a3ba --- /dev/null +++ b/static_site/style.css @@ -0,0 +1,8 @@ +body { background-color: #000; font-family: Serif; font-size: 1.2em; + color: #fff; text-shadow: #808080 0.1em 0.1em 0.2em; } +img { display: block; margin: auto; } +p { text-align: justify; margin-top: 25px; } + +a { color: #808080; text-decoration: none; } + +#page { width: 800px; margin: auto; }